Sheet-glass-surfacing apparatus



l inve-Mhz Q/Ohn C. G/pe.

GH'oznu \A A@ v Filed Aug. 18. 1926 May 271,192.9. Y'

PatenteafMay 21, 1929.

UNITED STATES.q

maar

,Persa-Frise.

JOHN'G. GIPE, 0F TOLEDO, OHIQ, ASSIGNOR T0 THE LIBBEY-OWENSB SHEET GLASS COMPANY, OF TOLEDO, O HIO, A. CORPORATION 0F. OHIO.

' SHEETGLASS-YSURFAGING APPARATUS.

Application filed August 18,

particularly to a Anovel and simplified apparatus designed primarily for use inconnection with what is commonly termed the continuous process for surfacing glass. l

' It will be understood that in the continuous process, er in other words that process whereby the surfacingtof the glass may be continuously' pursued, the glass sheets are mounted upon suitable tables "or conveyors vfor carrying the glass beneath successive surfacing units, reversing the sheets and surfacing the second side.

Prior to the present invention various methods have been employed for mounting the glass sheets upon the tables or conveyors before subjecting them tothe action of the surfacing units. have not proven entirely satisfactory, and contain several distinct disadvantages, one beingthat in the practice of such methods it is customary to press down iirst one end of the glass and then the opposite end thereof, andl in thepractice-'of these methods as the glass is pressed downwardly at one end, the opposite end will have the tendencyto kick up with theresult that the sheet will not be evenly set. Again, a plurality of sheets are usually mounted end to end on a number of tables, and with the methods now commonly employed, the various sheets are not apt to be evenly set relative to one another. In other words, one sheet is very likely to be a little higher or a little lower than the ad` jacent sheet.

The present invention has been provided for overcoming the above disadvantages, and an important object thereof is to provide new and novel means for pressing theglass sheet so that any danger of the sheet kicking up or buckling is reduced to a minimum.

Another object et" the present invention is to provide improved means of the above character for applying to the sheet throughout its entire length an men and uniform pressure.

Another object of the present invention is the provision of improved means of the above character for gradually pressing the However, these methods 'r i926. seriai (No. iaasecf glass sheet downwardly into a .plastic material until it is in a predetermined position.

Another object of the present invention is the provision of means wherein the various glass sheets will beset in exactly the same l horizontal .plane relative to one another.

U A urther'object of the present invention is the provision of improved means oit the above character, embodying a plurality of pressing instrumentalities and means for 6o moving a sheet of glassin a definite hori zontal path beneath the said pressing instrumentalities.

Numerous other objects and advantages of the present invention will become more readily apparent during the coursel of the fol#l lowing description when taken inconnecttion'with the accompanying drawings.

In the drawings: Fig. vis a dia rammatic view of the present invention owing the positions of the pressing instrumentalities relative to the glass supporting tables.

.Fig 2 is a vertical longitudinal sectional viev through one ofthe supporting tables, .75 an Fig. 3 is a transverse section showingthev` mounting for the pressing instrumentalities 0r rollers.

gl-eferring now more in detail to the ac 8o cmpanying drawings, itwill be seen that inY carrying the present invention into practice, there is provided a plurality of horizontal supporting tables 10, and any suitable means may be provided for securing the adjacent ends of these tables together. The tables may be of any desired size and construction, and are supported at their opposite ends by means of supporting' wheels 1l and 12 which run upon rails 13. The tables 10 are adapted to carry the glass sheets in a definite horil zontal path beneath a series of surfacing units, one of which is generally designated by the numeral 14.

than securing the glass sheets to the tables. a suiiicient amount of suitable plastic material, indicated at 15, is first placed upon the tables, after which the glass sheets 16, are placed upon the plastic material.

Positioned above the tables 10, in advance 1r tables `are preferably employe .of the surfacing units` 14 and in a substanlcarried by qstan ards 23. A number of rollers sufficient to cover .a (plurality of and these rollers are arranged in an inclined plaire, with the endroller 19 remote from the surfacing units 14, being positioned furtherest away from the table 10. A number of rollersI .20, sufficient to cover at least onejtable and mounted in the same manner as rollers 17,

are arranged in aA horizontal plane immediately adjacent the, rollers 17. The

end roller 21, adjacent the surfacing units,

is spaced therefrom a\distance sufficient to allowV the plastic material to set before the glass sheet is subjected to the action of the surfacing units.

Thus, the lass sheet is'first secured to the table in t e manner above stated, after which the tables are run under the rollers towards the surfacing units.\ It -will therefore be appreciated that as the glass sheetcomes, first into contact with the roller 19 andsubsequently into successive contact'with the bther rollers, that the .same will be gradually pressed downwardly ino the plastic material.v The rovision of he rollers 20 in a horizontal p ane is pne of the important features of the present invention in that spirit of the ,invention as 'long as. suchthese 'rollerswill give a uniform pressure throughout the entire length of the glassv sheet,.thereby effectively reventing the kicking up of either end ofptheV sheet and the buckling thereof during the pressing operation. Also, due to the 'fact vthat the rollers 2O are mounted on fixed adjustable shafts,`the same amount of pressure will be applied to each sheet so that the various sheets, after being pressed, will be in the same horizontal plane relative to one another. Y From the foregoing,l it. is believed that the advantages to be derived from the present invention will be readily apparent, and it is to be understood that changes in details of construction may be resorted to without departing from or sacrificing the anges fall within the" scope of .the appended claims. f 'I .1. Inamachine for mounting glass sheets which are to be surfaced, a bed uponwhich the glass is adapted to be mounted, a layer of plastic material on said bedband upon which the glass initially rests,

plurality of pressing instrumentalities ar- -Which the -moving the ed in a horizontalpath, a plu-J .ing 'instrumentalities means for 'moving the bed '1n a horizontal path, and a ini-1,307

inclined plane'and adaptedl to press the glass into the said lastic material. v

2. In a mac ine for mounting glass sheets which` are to be surfaced, a bed upon which the glass is adapted to be mounted, a layer f of plastic material on said'bed and upon wl'iich the glass initially4 rests, means for moving the bed in a horizontal path, and a plurality of rotatablepressing instrumentalities arranged, with their pressingl surfaces in an inclined plane and adapted to press the glass into the said plastic` material. 3. In a'machine for mounting glass sheets which are to be surfaced, a bed upon which theglass is adapted 'to be mounted, a layer of plastic material on said bed and upon. .which the glass initially moving the bed in-a horizontal path, and a. plurality of freely rotatable cylindrical members disposed transversely of said bed, the bottoms of the eripheries of said vmembers being arrangedP in an inclined plane and adapted to press the glass into the said plastic material.

4., In a machine for mounting glass sheets which are to be surfaced, a bed upon which the glass is adapted to be mounted, a layer of plastic material on said bed and upon which the glassI initially rests, means for moving the bed in a horizontal path, a plurality of pressing instrumentalities arranged with their pressing surfaces in an ificlined plane and ad pted to press the glass into the said plastic aterial, andl a plurality' of additional pressing iistrumentalitiesarranged with their pressing surfaces in a horizontal .plane and adapted to engage the glass subsequent to-the` engagement therewith of said first ymentioned 5. In a machine for mounting glass sheets which are to be surfaced, a/lnsd upon which rests, means for pressing instrumentalities.

the glass is adapted tol be mounted, a-layer of plastic material on said bed and upon lass initially rests, means for rality of rotatable pressing instrumentalities arranged with, their pressing surfaces in an mclinedplane and-adapted to press theglass into the said plastic material, and a plurality of additional rotatable/pressing instrument'alities arranged with their pressing surfaces in a horizontal plane and adapted to engage the glass subse uent to the engagement therewith of said Erst mentioned press- 6. Inv a machiimifor mounting glass sheets which -are to be surfaced, a bed upon which the Iglass is adapted to be mounted, a layer",

ofvplastic material on said bed and upon which the glass initially rests,F means for moving the 'bed in a horizontal path, a plurality of freely rotatable cylindrical members disposed transversely of said bed, the bottoms of the peripheries of said members .being arranged in an inclined plane and therewith of said rst mentioned cylindrical vadapted to ress the glass into thesaid lasmembers. L tic materia, and a pluralit of additional :l Signed, at Toledo, inthe county of Lucas 1o freely rotatable cylindrica members arand State of Ohio, thisvlth day of August, 5 ranged with the bottoms of their peripheries 1926.

` in a horizontal plane and adapted to engage the glass subsequent to the engagement JOHN C. GIPE; 

